In the expansion of \[{{\left( \frac{1+x}{1-x} \right)}^{2}}\], the coefficient of \[{{x}^{n}}\] will be

In the expansion of \[{{\left( \frac{1+x}{1-x} \right)}^{2}}\], the co

1.	In the expansion of \[{{\left( \frac{1+x}{1-x} \right)}^{2}}\], the coefficient of \[{{x}^{n}}\] will be
A.	\[4n\]
B.	\[4n-3\]
C.	\[4n+1\]
D.	None of these
Answer» B. \[4n-3\]

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In the expansion of \[{{\left( \frac{1+x}{1-x} \right)}^{2}}\], the coefficient of \[{{x}^{n}}\] will be

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